Combined procedures with unicompartmental knee arthroplasty: High risk of stiffness but promising concept in selected indications

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Table 3

Comparison of KSS and satisfaction between patient presenting a postoperative complication and patient with no complication.

	No postoperative complication (n = 24)^a	Postoperative complication (n = 7)^a	p value
Preoperative KSS
Knee	60.7 ± 12.5 [30–86]	53.7 ± 11.2 [35–70]	n.s.
Function	59.5 ± 16.6 [25–90]	63.9 ± 14.2 [50–90]	n.s.
Total	120.2 ± 22.9 [70–170]	117.6 ± 14.4 [100–146]	n.s.
Postoperative KSS
Knee	94.4 ± 5.7 [79–100]	82.7 ± 12.4 [69–99]	n.s.
Function	93.6 ± 12.6 [60–100]	95 ± 8.7 [80–100]	n.s.
Total	187.5 ± 18 [139–200]	176 ± 20.6 [149–199]	n.s.
KSS Improvement
Knee	33.6 ± 15.6 [12–69]	38.7 ± 21.3 [12–64]	n.s.
Function	34.5 ± 19.9 [0–75]	33.3 ± 9 [20–43]	n.s.
Total	68.5 ± 30.6 [24–129]	68.7 ± 18.9 [42–84]	n.s.
Postoperative FJS	78.2 ± 19.2 [40–100]	66 ± 17.9 [40–91]	n.s.

Data are presented as mean ± standard deviation [minimum–maximum] or number (proportion), n.s.: non-significant.

KSS = Knee society score; FJS = Forgotten Joint Score.

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